manage_posts_extra_tablenav action-hook . WP 4.4.0

Fires immediately following the closing "actions" div in the tablenav for the posts list table.

Usage

add_action( 'manage_posts_extra_tablenav', 'action_function_name_2382' );
function action_function_name_2382( $which ){
	// action...
}

$which(string)

The location of the extra table nav markup: 'top' or 'bottom'.

Where the hook is called

do_action( 'manage_posts_extra_tablenav', $which );

Where the hook is used (in WP core)